Valve.



c. M. HANNAM VALVE.

APPLICATION FILED PAM/29. MM5.

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iff/@MM W32@ the thermostaticchambers 23 causing the mentioned valveto be raised until firmly in contact or in engagement' with its seat.

A y Should condense steam or water accumulate within or enter the chamber 1, it is evident that the oat 22 will rise therewith to in this manner automatically close the mentioned valve. Normally, as indicated in Fig. 1,l

said valve 17 is opened, the weight of the iioat 22 acting as a retracting means whereby said valve is thus maintained. Should the automatic valve operating means fail to close the mentioned valve, it is evident that 4the 'steaml or water pressure, if excessive, will l automatically unseat the valve 11 and, l

ythrough-opening 15, permit such excess steam orwater to escape.v -Movement of the valve 11 is against tension of the sprin 12.

In reduction to practice, I have oun that the form of my invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is

the most eiicient and practical; yet realiz-l ing that the conditions concurrent with the' Laaaaae Having thus fully described-my invention,

what I claiml as new and desire'to secure by Y form annular recesses, al pair of valve structures, each comprising a cylindrical body fitting said tubular -casing for sliding movement, a.. frusto-conical valve formed onl the remote ends of said cylindrical body for engagement with the valve seat formed onv the ends of 4the tubular valve casing, each of said valve structures being perforated with passages which open at one end on the .outer faces of the` valve and at their opposite ends on the side of the cylindrical body, and into the annular recesses, a spring -or 'retaining the outer valve upon its seat, yafloat connected to the inner valve structure, and a thermostatic elementy contacting with said iloat whereby to move said inner valve structure to closed position when said thermostatic element is expanded.

In testimony whereofI ailix my signature in presence of two witnesses.

A CHARLES M. HANNA. Witnesses:

ELIZABETH HAMBURG, IDA NEWMAN. 

